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CSD95480RWJ
SLPS670 –JUNE 2017
CSD95480RWJ Synchronous Buck NexFET™ Smart Power Stage
1 Features
2 Applications
1
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70-A Continuous Operating Current Capability
Over 95% System Efficiency at 30 A
High-Frequency Operation (up to 1.25 MHz)
Diode Emulation Function
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Multiphase Synchronous Buck Converters
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High-Frequency Applications
High-Current, Low-Duty Cycle Applications
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POL DC-DC Converters
Temperature Compensated Bi-Directional Current
Sense
Memory and Graphic Cards
Desktop and Server VR12.x / VR13.x V-Core
Synchronous Buck Converters
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Analog Temperature Output
Fault Monitoring
3 Description
3.3-V and 5-V PWM Signal Compatible
Tri-State PWM Input
The CSD95480RWJ NexFET™ power stage is a
highly optimized design for use in a high-power, high-
density synchronous buck converter. This product
integrates the driver IC and power MOSFETs to
complete the power stage switching function. This
combination produces high-current, high-efficiency,
and high-speed switching capability in a small 5-mm
× 6-mm outline package. It also integrates the
accurate current sensing and temperature sensing
functionality to simplify system design and improve
accuracy. In addition, the PCB footprint has been
optimized to help reduce design time and simplify the
completion of the overall system design.
Integrated Bootstrap Switch
Optimized Dead Time for Shoot-Through
Protection
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High-Density QFN 5-mm × 6-mm Footprint
Ultra-Low-Inductance Package
System Optimized PCB Footprint
Thermally Enhanced Topside Cooling
RoHS Compliant – Lead-Free Terminal Plating
Halogen Free
Device Information(1)
DEVICE
MEDIA
QTY
PACKAGE
SHIP
Application Diagram
CSD95480RWJ
13-Inch Reel
2500
QFN
Tape
and
Reel
5.00-mm × 6.00-mm
Package
P12V
CSD95480RWJT
7-Inch Reel
250
TPS53679
BOOT BOOT_R
AVSP
AVSN
VIN
VOS
PWM
PWM1
CSD95480RWJ
ASKIP#
EN/FCCM
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
P5V
VSW
TAO
VDD
LOAD
PVDD
LSET
PGND IOUT REFIN
ACSP1
TSEN
Typical Power Stage Efficiency and Power Loss
100
90
80
70
60
50
40
30
17.5
P12V
P5V
15
BOOT BOOT_R
VOS
VIN
APWM6
PWM
CSD95480RWJ
EN/FCCM
VREF
3.3V
VSW
TAO
ADDR
VDD
12.5
10
PVDD
LSET
PGND IOUT REFIN
VDD = 5 V
VIN = 12 V
VOUT = 1.8 V
LOUT = 150 nH
fSW = 600 kHz
TA = 25èC
V3P3
ACSP6
VREF
P12V
VIN_CSNIN
7.5
5
CSPIN
BVSN
BVSP
VCCIO
BEN_VCCIO
P12V
P5V
SCLK
SDIO
BOOT BOOT_R
VIN
SALERT#
PIN_ALT#
VR_HOT#
SMB_CLK
SMB_ALERT#
SMB_DIO
AVR_RDY
BVR_RDY
AVR_EN
2.5
0
VOS
PWM
BPWM1
BSKIP#
CSD95492QVM
EN/FCCM
VSW
TAO
VDD
LOAD
PVDD
LSET
PGND IOUT REFIN
0
10
20
30
40
50
60
70
Output Current (A)
D000
VR_FAULT#
RESET#
BCSP1
AGND
Copyright
© 2016, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.